OBJECTIVE To investigate the performance of non-stress test (NST), computerized fetal heart rate analysis (cCTG), biophysical profile scoring (BPS) and arterial and venous Doppler ultrasound investigation in the prediction of acid-base status in fetal growth restriction. METHODS Growth-restricted fetuses, defined by abdominal circumference < 5(th) percentile and umbilical artery (UA) pulsatil...

Aim: To evaluate fetal thymus size using the thymic-thoracic ratio (TTR) in women with a pregnancy complicated growth restriction (FGR) and to assess relationship adverse perinatal outcomes. &#x0D; Materials Method: A total of 35 pregnant FGR 42 healthy similar demographic characteristics were included this prospective study. In group, cases pathological doppler flow parameters absent end-diast...

OBJECTIVES To examine whether single-nucleotide polymorphisms (SNPs) in VEGFA (-2578 C/A and +936 C/T) associate with small-for-gestational-age (SGA) pregnancies and to identify their effects on first-trimester placental VEGFA expression. DESIGN Multicenter prospective cohort study. SETTINGS Adelaide, Australia, and Auckland, New Zealand. PARTICIPANTS A total of 3234 nulliparous pregnant ...

INTRODUCTION The purpose of each antenatal control focuses on the detection and prevention of hypoxic-ischemic injury and fetal death (1)) using modern biophysical tests and Doppler parameters. GOAL This study examines the correlation of changes in arterial compared to venous hemodynamics of the fetus and is determined by the most sensitive and most specific Doppler parameter in the assessmen...

BACKGROUND Fetal color Doppler is important for evaluation of hypoxia in intrauterine growth restriction (IUGR) fetus. OBJECTIVE In this study we compare fetal and maternal color Doppler with blood gas analysis to detect fetal acidosis. MATERIALS AND METHODS In this cross-sectional study we evaluated 100 hospitalized patients with IUGR for comparison of color Doppler results with arterial b...

OBJECTIVE An experienced sonographer can by listening to the Doppler audio signals perceive various timbres that distinguish different types of umbilical artery flow despite an unchanged pulsatility index (PI). Our aim was to develop an objective measure of the Doppler audio signals recorded from fetoplacental circulation in a sheep model. METHODS Various degrees of pathological flow velocity...

The application and development of obstetric Doppler velocimetry provide a basis for the investigation of placental insufficiency and demonstrate the dynamic behavior of fetal circulation during hypoxia. In clinical practice, assessing hemodynamics in three vascular regions involved in pregnancy, namely the uterine, umbilical and middle cerebral arteries, has become routine. Roughly, the cerebr...

OBJECTIVES To reanalyze randomized controlled trials on the use of umbilical artery Doppler velocimetry in high-risk pregnancies and determine which high-risk pregnancies benefit from the use of Doppler velocimetry. METHODS Searching Medline, the Cochrane Library and Embase we found 13 randomized controlled trials on the use of Doppler velocimetry in high-risk pregnancies. Of these, six inclu...

Objective: To determine diagnostic utility of Doppler measurements in fetal descending aorta and umbilical arteries in predicting intrauterine growth retarded (IUGR) fetuses at risk in pregnancies complicated by pre-eclampsia and/or HELLP syndrome. Methods: Doppler measurements were taken in fetal descending aorta and umbilical arteries of 53 patients with pre-eclampsia, 10 of whom had HELLP sy...

The aim of this study was to evaluate the obstetric and sonographic parameters associated with perinatal mortality and neonatal intensive care unit admission (NICU) in pregnancies affected by small for gestational age before 34 weeks gestation. Study recruited 313 singleton pregnancies who were referred if small fetal size was suspected due to clinical evaluation in the antenatal setting. The p...